1. Price reflected is the weighted-average purchase price for shares purchased. The range of purchase prices for the transactions reported was $7.86 to $7.99 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

2. Shares held directly by the Stephen M. Case Revocable Trust under agreement, dated December 17, 1998, as amended (the "Trust"). Mr. Case serves as the sole trustee of the Trust and has the sole power to direct the vote and disposition of the shares held by the Trust.

3. Shares held directly by Revolution Living LLC ("RL"), an entity controlled by Mr. Case. Mr. Case is the Chairman, Chief Executive Officer and President of RL and has the sole power to direct the vote and disposition of the shares held by RL.

4. Shares held directly by Revolution Living II LLC ("RL II"), a wholly-owned subsidiary of RL. Mr. Case is the Chairman, Chief Executive Officer and President of RL and RL II and has the sole power to direct the vote and disposition of the shares held by RL II.

5. Shares held directly by Revolution Living III LLC ("RL III"), a wholly-owned subsidiary of RL. Mr. Case is the Chairman, Chief Executive Officer and President of RL and RL III and has the sole power to direct the vote and disposition of the shares held by RL III.

/s/ SONG H. PAK, attorney-in-fact for Stephen M. Case

08/14/2012

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).